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प्रश्न
Give scientific reasons:
On complete hydrolysis DNA gives equimolar quantities of adenine and thymine.
Why on complete hydrolysis DNA gives equimolar quantities of adenine and thymine?
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उत्तर
- Both the strands of DNA double helix are complementary to each other.
- That is a number of bases on each strand are equal and complementary to each other.
- As adenine pairs with thymine; the number of adenine bases on one strand and thymine on another are equal in number.
Thus, on complete hydrolysis DNA gives equimolar quantities of adenine and thymine.
संबंधित प्रश्न
Draw a neat diagram for the following:
One purine base from nucleic acid
Write the name of the base present in DNA but not found in RNA.
Sugar present in DNA is ___________
Define the following term.
nucleoside
Draw structure of following.
Cytosine
Given below is the diagrammatic representation of one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown & one blank component “ X” in it.
Write the characteristic feature of DNA.
Identify the INCORRECT match.
Watson and Crick are known for their discovery of ______.
In which of the following RNA is genetic material?
____________ bonds are absent in DNA.
What is the number of \[\begin{array}{cc}\\\backslash\phantom{.......}\\\phantom{}\ce{C = O}\\/\phantom{........}\end{array}\] groups present in nitrogen bases of nucleic acids, thymine and uracil respectively?
If one strand of the DNA has the sequence ‘ATGCTTGA’, then the sequence of complementary strand would be ____________.
Give names of the purines.
Draw a neat diagram for the following:
AMP
Which carbon atom of deoxy Ribose sugar in DNA does not contain \[\begin{array}{cc}|\phantom{...}\\\ce{- C - OH}\\|\phantom{....}\\ \end{array}\] bond?
The following ratio is generally constant for a given species
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- X-ray diffraction studies of DNA were done by Wilkins and Franklin.
- Chargaff’s base equivalence rule
- Griffith's transformation experiment
- Meselson and Stahl's experiment
Which of the following statements are correct?
- In animals, the causative agent of foot and mouth disease in single stranded RNA Aphthovirus.
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In animals foot and mouth disease spreads by direct or indirect contact.
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Anthrax is a disease of domestic animals caused by Bacillus anthracis.
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Rinderpest is a contagious bacterial disease of cattle.
Define the Nucleic acids.
What are the nucleotides?
Match List - I with List - II.
| List - I | List - II |
| A. Adenosine | I. Nitrogen base |
| B. Adenylic acid | II. Nucleotide |
| C. Adenine | III. Nucleoside |
| D. Alanine | IV. Amino acid |
Choose the option with all correct matches.
Which pentose sugar is found specifically in DNA?
What is the primary structural feature of DNA according to the Watson and Crick Model?
What is the primary function of DNA in living organisms?
Which classification of compound contains nucleic acids in living tissues?
